#!/usr/bin/env pytest # -*- coding: utf-8 -*- ############################################################################### # # Project: GDAL/OGR Test Suite # Purpose: Selafin driver testing. # Author: François Hissel # ############################################################################### # Copyright (c) 2014, François Hissel # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER # DEALINGS IN THE SOFTWARE. ############################################################################### import math import os import gdaltest import pytest from osgeo import ogr, osr pytestmark = pytest.mark.require_driver("Selafin") ############################################################################### @pytest.fixture(autouse=True, scope="module") def module_disable_exceptions(): with gdaltest.disable_exceptions(): yield ############################################################################### # Create Selafin datasource def test_ogr_selafin_create_ds(): gdaltest.selafin_ds = None try: os.remove("tmp/tmp.slf") except OSError: pass selafin_drv = ogr.GetDriverByName("Selafin") gdaltest.selafin_ds = selafin_drv.CreateDataSource("tmp/tmp.slf") if gdaltest.selafin_ds is not None: return pytest.fail() ############################################################################### # Add a few points to the datasource def test_ogr_selafin_create_nodes(): test_ogr_selafin_create_ds() ref = osr.SpatialReference() ref.ImportFromEPSG(4326) layer = gdaltest.selafin_ds.CreateLayer("name", ref, geom_type=ogr.wkbPoint) assert layer is not None, "unable to create layer" layer.CreateField(ogr.FieldDefn("value", ogr.OFTReal)) dfn = layer.GetLayerDefn() for i in range(5): for j in range(5): pt = ogr.Geometry(type=ogr.wkbPoint) pt.AddPoint_2D(float(i), float(j)) feat = ogr.Feature(dfn) feat.SetGeometry(pt) feat.SetField(0, (float)(i * 5 + j)) assert layer.CreateFeature(feat) == 0, "unable to create node feature" # do some checks assert ( layer.GetFeatureCount() == 25 ), "wrong number of features after point layer creation" # return del gdaltest.selafin_ds del layer ############################################################################### # Add a set of elements to the datasource def test_ogr_selafin_create_elements(): gdaltest.selafin_ds = ogr.Open("tmp/tmp.slf", 1) if gdaltest.selafin_ds is None: pytest.skip() layerCount = gdaltest.selafin_ds.GetLayerCount() assert layerCount >= 2, "elements layer not created with nodes layer" for i in range(layerCount): name = gdaltest.selafin_ds.GetLayer(i).GetName() if "_e" in name: j = i if "_p" in name: k = i layere = gdaltest.selafin_ds.GetLayer(j) dfn = layere.GetLayerDefn() for i in range(4): for j in range(4): pol = ogr.Geometry(type=ogr.wkbPolygon) poll = ogr.Geometry(type=ogr.wkbLinearRing) poll.AddPoint_2D(float(i), float(j)) poll.AddPoint_2D(float(i), float(j + 1)) poll.AddPoint_2D(float(i + 1), float(j + 1)) poll.AddPoint_2D(float(i + 1), float(j)) poll.AddPoint_2D(float(i), float(j)) pol.AddGeometry(poll) feat = ogr.Feature(dfn) feat.SetGeometry(pol) assert layere.CreateFeature(feat) == 0, "unable to create element feature" pol = ogr.Geometry(type=ogr.wkbPolygon) poll = ogr.Geometry(type=ogr.wkbLinearRing) poll.AddPoint_2D(4.0, 4.0) poll.AddPoint_2D(4.0, 5.0) poll.AddPoint_2D(5.0, 5.0) poll.AddPoint_2D(5.0, 4.0) poll.AddPoint_2D(4.0, 4.0) pol.AddGeometry(poll) feat = ogr.Feature(dfn) feat.SetGeometry(pol) assert layere.CreateFeature(feat) == 0, "unable to create element feature" # do some checks assert ( gdaltest.selafin_ds.GetLayer(k).GetFeatureCount() == 28 ), "wrong number of point features after elements layer creation" assert ( math.fabs(layere.GetFeature(5).GetFieldAsDouble(0) - 9) <= 0.01 ), "wrong value of attribute in element layer" assert ( math.fabs(layere.GetFeature(10).GetFieldAsDouble(0) - 15) <= 0.01 ), "wrong value of attribute in element layer" # return del gdaltest.selafin_ds ############################################################################### # Add a field and set its values for point features def test_ogr_selafin_set_field(): gdaltest.selafin_ds = ogr.Open("tmp/tmp.slf", 1) if gdaltest.selafin_ds is None: pytest.skip() layerCount = gdaltest.selafin_ds.GetLayerCount() assert layerCount >= 2, "elements layer not created with nodes layer" for i in range(layerCount): name = gdaltest.selafin_ds.GetLayer(i).GetName() if "_e" in name: j = i if "_p" in name: k = i layern = gdaltest.selafin_ds.GetLayer(k) gdaltest.selafin_ds.GetLayer(j) layern.CreateField(ogr.FieldDefn("reverse", ogr.OFTReal)) layern.AlterFieldDefn(0, ogr.FieldDefn("new", ogr.OFTReal), ogr.ALTER_NAME_FLAG) layern.ReorderFields([1, 0]) layern.GetLayerDefn() for i in range(28): feat = layern.GetFeature(i) val = feat.GetFieldAsDouble(1) feat.SetField(0, (float)(val * 10)) layern.SetFeature(feat) # do some checks assert ( math.fabs(layern.GetFeature(11).GetFieldAsDouble(0) - 110) <= 0.01 ), "wrong value of attribute in point layer" # return del gdaltest.selafin_ds ############################################################################### # Cleanup def test_ogr_selafin_cleanup(): selafin_drv = ogr.GetDriverByName("Selafin") selafin_drv.DeleteDataSource("tmp/tmp.slf")